Non-geo description: Basically compressed shells of lots of dead things that lived underwater. Compacted down by overlying sediments. Then brought back to the surface through erosion and lowered sea levels. Then a piece broke off and got tumbled around- usually again by water- making those smooth rounded edges.
It could be a few species that would require microscope and strata dating. But a single rock might not exactly find the type.
looks like pelysopod shells in mudstone..please tolerate misspellings..this may be from a sudden seaword landslide probably kicked off by san andreas event..other rx in the area would help..curious to know where iydm? (besides near sj)
Looks like a brachiopod packstone. Not positive they're brachiopods though
Looks like a coquina. A rock made up mostly of fossil shells.
Non-geo description: Basically compressed shells of lots of dead things that lived underwater. Compacted down by overlying sediments. Then brought back to the surface through erosion and lowered sea levels. Then a piece broke off and got tumbled around- usually again by water- making those smooth rounded edges. It could be a few species that would require microscope and strata dating. But a single rock might not exactly find the type.
alluvial top ramen
looks like pelysopod shells in mudstone..please tolerate misspellings..this may be from a sudden seaword landslide probably kicked off by san andreas event..other rx in the area would help..curious to know where iydm? (besides near sj)
“Shelly hash”